Wheel-defect and coupling-limit gage



A. IVIcCORII/IICK.

WHEEL DEEECT AND COUPIING LlMlT GAGE.

APPLICATION FILED MAR I2, 1918.

1,346,224. Patented July 13, 1920..v

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UNITED STATS ANDREW ivieconivrioi, or HEBCULANEUM, MISSOURI.

WHEEL-DEFECT AND COUPLING-LIIVIIT GAGE.

Specification of Letters Patent.

Patented July 13, 1920.

Application led March 12, 1918., Serial No. 221,916.

To all whom t may concern:

Be it known that ANDREW MCCORMICK, a citizen of the United States, and aresident ofthe city of Herculaneum, county of Jefferson, and State ofMissouri, have invented certain new and useful Improvements inVVheel-Defect and Coupling-Limit Gages, of which the following is aspecification.

My invention relates to improvements in gages designed for useespecially by inspectors of railway car wheels, couplers and axles, andhas for its object the production of a gage of this character throughthe medium of which the inspectionand gaging of the above referred todevices may be readily and expeditiously eii'ected. A further object isthe production of a gage as mentioned, which will be of durable andeconomical construction,I one which will be compact and one which may bereadily and easilyused in the gaging or inspecting operation. Otherobjects will appear hereinafter.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

The invention will be best understood by reference to the accompanyingdrawings forming a part of this specification, and in which-- Figure 1is a partial sectional front elevation of a gage embodying theinvention, showing the same employed for use in gagin the thickness ofthe flange of a car wheel,

i ig. 2, an end elevation of the gage,

Fig. 8, a partially sectional top plan view thereof,

Fig. 4f, a view illustrating the employment of the gage in the measuringor gaging of wheels with broken or chipped rims,

Fig. 5, a view illustrating the device employed in the gaging of chippedwheel flanges, and

Fig. 6, a view illustrating the employment ofthe gage for the gaging ofworn couplers.

lThe preferred form of construction as illustrated in the drawingscomprises a fiat plate 7, one end of which is cut away and formed toconstitute a relatively stationary jaw 8. Riveted or otherwise suitablyfastened to one side of the plate 7 are strips 9 and 9 which arearranged in spaced parallel relation in order to constitute a channel 10between the same. blidably mounted in the channel 10 is a shank 11 atone end of which is formed a relatively movable jaw 12 which is arrangedfor cooperation with the jaw 8, the arrangement being such that jaw 12may be moved toward and from the jaw 8 and projected from one end of thebody 7 if desired, as seen in Fig. 6.

The shank 11 is fastened to the body 7 by means of a bolt 13 andcooperating nut la, said bolt passing through an elongated slot 15provided in said shank in order to afford clearance for said bolt andpermit of the desired shifting of said shank. The bolt 13 adjacent thehead thereof is square, as seen in Fig. 1, so as to hold said boltagainst relative rotation in the threading and unthreading of nut 14eand in the shifting of the shank 1l.

interposed between the nut 14C and the plate 7 is a bow spring 16 havinga slot 17 therein to afford clearance for said boit. Said spring serves,as will be seen, to yieldingly hold the shank 11 and hence therelatively movable jaw 12 in positions of adjustment.

Provided upon the shank 11 is a suitable scale or series of graduations1S arranged to coperate with an edge 18 in ascertaining the distancebetween the jaws 8 and 12 and the distance of extension of the movablejaw as for instance in coupler gaging, as seen in Fig. 6. The peripheryof the plate 7 is provided with a plurality of spaced notches 19 whichmark certain predetermined distances along the same for use inconnection with the various gaging operations, as seen in Figs. 4 and 5.Also, the periphery of said plate is provided with certain curves,contours and bevels to further adapt the same for use in the measuringof the various irregularities, curvatures, protrusions and the like, forwhich the device is intended when in use.

Through the arrangement of the movable jaw in which the same may beextended from the body, that is the plate 7 of the device, said aw isrendered capable of measuring externally, or in the manner as seen inFig. 1, and also internally as seen in Fig; 6. There used for internalmeasurements, the movable jaw cooperates with the entire length of thedevice, the one extremity being the left hand end of the plate 7, asseen in Fig. 6, and the other extremity being the outer end of themovable jaw. y

A. device of the construction disclosed is capable of use in a varietyof different ways for measuring different forms of defects, among whichare defective wheel flanges,

gaging flat or shelled out spots on the Wheel periphery, gagging WheelsWith broken or chipped rims, chipped Wheel flanges, Worn axle collars,and Worn couplers. However, the use of the device is not restricted tothe instances enumerated, but may be used to advantage in many otherinstances.

IVhile I have illustrated and described the preferred form ofconstruction :for carrying my invention into effect, this is capable ofvariation and modification Without departing from the spirit of theinvention. I therefore, do not Wish to be limited to the precise detailsof constructions set forth, but desire to avail myself of suchvariations and modifications as come Within the scope of the appendedclaim.

yIrwing described my invention, what I claim as nen7 and desire tosecure by Letters vPatent is :--V

A` device of the class describedV comprising a body part having arelatively stationary jaw provided thereon at one end; spaced parallelplates mounted on said body, having channel between them; 'a shankslidably mounted in said channel and adapted to project from said end ofsaid body; a jaW on said shank for cooperation` with said relativelystationary `jaw; a bolt passing through said shank and body; acooperating nut threaded upon said bolt, and a bouT spring engaging Withsaid bolt and body Jfor yieldingly holding saidV relatively movable jaivin positions of adjustment, said shank being longitudinally slotted tovaccommodate said bolt, the portion of said bolt registering With saidslot being square and fitting snugly in said slot, whereby said bolt isheld against rotary movement, substantially as described.

In testimony Whereoi1 I have signed my name to this specification in thepresence of two subscribing Witnesses. l

ANDREW MCCORMICK.

Witnesses v RUDOLPH T. Camas, H. T.' SIMPSON.

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